Island



J. C. SHAMBOW.

SHUTTLE EYE.

APPLICATION FILED APR. 14. 1919.

Patented Dec. 16,1919.

Fifi/,0 742 //14 FIE-1.2.

UNITED sTATEs PATEN o F oE.

JOHN C. SHAIMIBOW, 0E WOONSOGKET, RHODE ISLAND, ASSIG-NOR T0 SHAMBOXVSHUTTLE COMPANY, OF,WO0NS.O( IKET,..RHODE ISLAND, I

A. oorAnTnEnsHIr;

SHUTTLE-EYE.

Application filed April 14, 1919;

To all whom it may concern:

Be it known that I, JOHN C. SHAMBOW,

a citizen of the United- States, residing at on the thread as it leaves the eye.

A further aim'of the invention resides in the mounting of the-eye in the shuttle where by the latter is reinforcedagainst splitting which is frequently the situation in the shuttles now in use andresulting from the weakening of the shuttle body upon insertion of the eye.

he invention further resides in the features of construction and the arrangements and combinations of parts hereinafter de scribed and claimed, reference being had to the accompanying drawings wherein- Figure 1 is a top plan view of a shuttle equipped with the improved eye construction.

Fig. 2 is a view eye.

Fig. 3 is a fragmentary view of the shut tle showing the eye in vertical section, and

Fig. 4 is a. transverse section through the shuttle, depicting the eye in elevation.

Proceeding in accordance with the present invention, the shuttle body 1 is formed with the threading slit 2 for directing the thread from the bobbin cavity 3 to the eye constituting the subject matter of the vimprovements.

To this end, the shuttle is formed with a vertical bore 4 and a horizontal bore 5 intersecting the lower end of the bore a and of the complete shuttle having its adjacent end wall formed with a reduced thread opening 6 to which the threading slit leads. Adhesively secured Within the vertical bore 4: is a tubular fiber bushing or cylinder 7 having a transverse opening 8 registering with the horizontal bore 5 and communicating with the threading slit 2 through a lateral passage 9. Threaded in one end of the bore 5 is a nut or plug 10 carrying an inwardly projecting eye base 11 which supports a pair of guides 12, the foremost guide having a downwardly inclined entrance slot 13 and the companion Specification of Letters Patent.

to provide-an im proved friction device for placing a. drag Serial No. 289,790;

guide havin-gja horizontalentrance slot 14,

both entrance slots communicating witlrr-the threading slit. 7 7

In" assembling the'partsof the eye, the

fiber bushing is firstdisposed in the vertical boreand glued-therein with its transverse opening 8 in registry with the horizontal bore 4: into which the metal eye is now end. As the plug is advanced-into the bore, the eye part, guides 12, is al abutment with talibore, when-the eye passages of-theguides will coincide with the thread opening'fi. In this position the guides are partly disposed within the side walls of the bushing whereby the latter is. firmly held in position by means additional to the glue'securement.

Disposed betweenthe guides 12 andwithin thebore of the fiber bushing 'isa frictional comprising the base 11 andso advanced into and through the transverse opening 8 of the fiber "bushing until such advancing movenientis limited by the end wallof said horizon;

, Patented Dec. 16,1919;

serted by threading the plug 10 in the outer device in the nature of a glass, orother vitreeus, shoe 15 which has aseatin-its upper face for one end of a coiled tension spring 16, the latter having its opposite end engaged in the hollow underside of an adjusting nut 17 that is threaded in the upper end of the fiber bushingf The tension of the spring and, consequently the drag of the shoe on the underpassing thread, is varied and adjusted by turning the nut 17 as by inserting a tool in the opening 18 which extends through the nut and thereby permits inspection of the interior of the eye.

In threading the eye, the thread will pass beneath the glass shoe and into the guides 12. As the thread is drawn through the shuttle eye the friction of the shoe willcontrol the same in an efiicient manner and prevent it from unthreading. Furthermore, it frequently happens in the use of shuttles, that the Wood portion immediately above the eye, being weakened by reason of the insertion of the eye, will split and thus render the shuttle useless. The provision of the fiber bushing overcomes this defect and trouble since the eye is supported and reinforced or bound thereby.

Having thus described myinvention, What I claim as new and desire to secure by Letdisposed within the vertical bore and formed with a transverse opening registering with the horizontal bore, a metal eye secured within the horizontal bore and extending through the transverse opening of the bushing serving to lock the latter in the vertical bore, and a glass friction device accessible through the bushing and cooperating with the eye to place a drag on the thread as it leaves the'eye.

2. A shuttle formed with a threading slit leading to a horizontal bore which intersects a vertical bore also in the shuttle, a bushin disposed within the vertical bore and formed with a transverse opening communicating through a lateral slot with the threading slit, a metal eye comprising a plug threaded in the horizontal bore and having a base eX- tending through the opening of the bushing, said base having a pair of upstanding guides on opposite sides of the bore of the bushing and within the side walls thereof, said guides having lateral slots communicating with the threading slit a vitreous shoe interposed between the guides on the base to drag on the underpassing thread, a spring seating on the shoe, and a tensioning nut threaded in the bushing and bearing on the spring.

V 3. A shuttle having a threading slit leading to an eye passage intersecting a Vertical bore, a bushing secured within the bore and formed with a transverse opening in registry with the eye passage, an eye arranged in the latter and extending through the opening of the bushing to secure the latter in position, and a friction device arranged within the bushing and coacting with the eye to control the thread as itpasses out oi the eye.

4. A removable shuttle eye coniprrising a base having two spaced upstanding and registering thread guides, each with an entrance slot angularly related to the slot of the cornpanion guide. V

5. A shuttle eye comprising a threaded plug adapted to be inserted in an eye passage of a shuttle, an eccentrically disposed support extending from the plug in parallel relation to its axes, and spaced upstanding thread guides carried by the support and formed with registering .thread passages having entrance slots angularly related to each other.

6. A shuttle eye having a lateral opening througlrwhich the thread is accessible, a friction device operable through the opening to place a drag on the thread, a removable tubular body through which the eye extends transversely and which houses the friction device within the lateral opening of the eye, and means within the body for varying the tension on the friction device.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN c. SHAMBOW.

Witnesses:

WARREN H. KING, ALICE W, Coon. 

